Numerical Simulation of Huck Series Fastener Mechanics Action in Heavy Load Wagon
|School||Dalian Jiaotong University|
|Course||Materials Processing Engineering|
|Keywords||The Huck Series connector Finite Element Elastic-plastic Numerical simulation|
In order to improve the capacity of China's railway transport , freight trains have been in the direction of the \With the load capacity increases , the use of aluminum to reduce vehicle weight of steel and aluminum hybrid structure of heavy vehicles came into being. With increasing deadweight between the various components of the trucks bear the load also increases, which put forward higher requirements for the connection overloaded truck parts . Plate connection method commonly used in modern industrial production , riveting , screw , spot welding . But these connections because of their own shortcomings and limitations , can not meet the requirements of overloaded trucks , and therefore need to adopt a new connection . The Huck 's connector plastic deformation plate closely, able to meet the requirements of heavy trucks , has been a large number of applications . However, the size and scope of design when used because after the installation is complete connector connecting portion generated residual stress , pressure -affected zone is not clear , it is difficult to determine the number and distribution of Huck series connector installation in order to ensure security of the connection , use only the Multiple connectors, resulting in unnecessary waste . In addition, the plate allowable stress , vehicle plate not only by the stress imposed by the outside world , but also by the residual stress of the Huck series connectors . Sheet must be used to meet the sum of the externally imposed stress and residual stress is less than the allowable stress . Do not know the size of the residual stress connected to the rear panel , is bound to impact on the design of vehicle reliability . In order to solve the above problems , based on non-linear finite element software MARC Huck series connectors commonly used BOM and C50L connector Numerical Simulation of the mechanical behavior . Modeling technology to create the elastic-plastic model based on the contact . The results of numerical simulation reveals both the connector plastic molding law provides a numerical basis , not only to determine the connector pressure coverage is also overloaded trucks scientifically Huck Series connector provides an important reference .